Nike Free Run Fly Knit 3. 0 Trainers Ladies These Nike Free Run Fly Knit 3. 0 Trainers are a slip on style crafted with a padded ankle collar for a supported fit. They feature a cushioned insole for comfort and a thick foam sole for shock absorption. These trainers are designed with a signature logo and are complete with Nike Swoosh branding. > Trainers > Slip on > Padded ankle collar > Cushioned insole > Thick foam sole > Signature logo > Nike Swoosh branding > Upper: textile/synthetic > Inner: textile > Sole: synthetic